WO2016026087A1 - 数据传输方法和装置 - Google Patents

数据传输方法和装置 Download PDF

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Publication number
WO2016026087A1
WO2016026087A1 PCT/CN2014/084729 CN2014084729W WO2016026087A1 WO 2016026087 A1 WO2016026087 A1 WO 2016026087A1 CN 2014084729 W CN2014084729 W CN 2014084729W WO 2016026087 A1 WO2016026087 A1 WO 2016026087A1
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WO
WIPO (PCT)
Prior art keywords
uplink shared
shared resource
uplink
enb
resource
Prior art date
Application number
PCT/CN2014/084729
Other languages
English (en)
French (fr)
Chinese (zh)
Inventor
张丹丹
王瑜
苗金华
马莎
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to JP2017510319A priority Critical patent/JP6460428B2/ja
Priority to CN201480036865.1A priority patent/CN105637962B/zh
Priority to EP14900256.0A priority patent/EP3171652B1/de
Priority to PCT/CN2014/084729 priority patent/WO2016026087A1/zh
Publication of WO2016026087A1 publication Critical patent/WO2016026087A1/zh
Priority to US15/435,536 priority patent/US10194353B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/26—Resource reservation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/006—Quality of the received signal, e.g. BER, SNR, water filling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0078—Timing of allocation
    • H04L5/0087—Timing of allocation when data requirements change
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows

Definitions

  • the embodiments of the present invention relate to the field of communications technologies, and in particular, to a data transmission method and apparatus.
  • LTE Long Term Evolution
  • UE User Equipment
  • SR Uplink scheduling request
  • eNB Evolved Node B
  • the physical downlink control channel (Physical Downlink Control Channel, hereinafter referred to as PDCCH) waits for the authorization of the eNB, and the UE that receives the grant on the PDCCH performs uplink on the physical uplink shared channel (Physical Uplink Shared Channel, PUSCH for short). data transmission.
  • PDCCH Physical Downlink Control Channel
  • Embodiments of the present invention provide a data transmission method and apparatus to improve PUSCH utilization.
  • a first aspect of the embodiments of the present invention provides a data transmission method, including:
  • the user equipment UE receives the uplink shared resource information sent by the evolved base station eNB, where the uplink shared resource information includes location information of the M uplink shared resources, and the M shares of the uplink shared resource are allowed to be allocated by the eNB.
  • the UE parses the uplink shared resource information to obtain the location information
  • the uplink data is transmitted on one of the uplink shared resources corresponding to the location information.
  • the transmitting the uplink data on one of the uplink shared resources corresponding to the location information includes:
  • the UE transmits uplink data on the uplink shared resource to be used.
  • the UE determines, from the M uplink shared resources, an uplink shared resource to be used in an idle state, including :
  • the uplink shared resource information further includes a modulation coding mode MCS corresponding to each of the M uplink shared resources;
  • the M uplink shared resources correspond to the M physical reservation indication channels PRICH.
  • the PRICH is used to indicate whether the uplink shared resource corresponding to the PRICH is in an idle state;
  • determining, by the UE, that the candidate uplink shared resource is in an idle state, and determining that the candidate uplink shared resource is an uplink shared resource to be used including:
  • the candidate uplink shared resource When the candidate uplink shared resource is in an idle state, determining that the candidate uplink shared resource is an uplink shared resource to be used.
  • determining that the candidate uplink shared resource is an uplink share to be used Resources including:
  • the UE When the candidate uplink shared resource is in an idle state, the UE sends a reserved resource request to the eNB on the candidate uplink shared resource, where the reserved resource request is used to request the eNB to pre- Retaining the candidate uplink shared resources;
  • the reserved resource response indicates that the candidate uplink shared resource reservation is successful, determining that the candidate uplink shared resource is an uplink shared resource to be used.
  • the reserved resource response is carried on the PRICH, and the PRICH is further used to indicate that the UE requests to reserve Whether the candidate uplink shared resource is reserved successfully.
  • the UE transmits an uplink on the uplink shared resource to be used.
  • Data including:
  • the UE transmits uplink data on the uplink shared resource to be used, where the uplink data includes The reserved resource request.
  • the UE is in the uplink share to be used. After transmitting the uplink data on the resource, it also includes:
  • the uplink data feedback information sent by the eNB receives, by the UE, the uplink data feedback information sent by the eNB, where the uplink data feedback information is used to notify the UE whether the eNB successfully receives the uplink data;
  • the UE When the packet error rate is greater than a preset threshold, the UE re-determines the uplink shared resource to be used to transmit the uplink data, or the UE sends a scheduling request SR to the eNB to request a dedicated transmission resource transmission station.
  • the upstream data is described.
  • the method further includes:
  • uplink shared resource update information that is sent by the eNB, where the uplink shared resource update information is used to update location information of the uplink shared resource
  • the UE re-determines the uplink shared resource to be used according to the uplink shared resource update information.
  • the UE receives the uplink shared resource information sent by the eNB. ,include:
  • the UE parses the uplink shared resource information to obtain the location information, including:
  • the UE parses the uplink shared resource information to obtain the location information.
  • the method before the UE uses the shared RNTI to perform descrambling on the uplink shared resource information, the method further includes:
  • the UE receives the shared RNTI sent by the eNB.
  • the UE receives the uplink shared resource sent by the eNB.
  • Information including:
  • the UE receives the uplink shared resource information sent by the eNB by using a dedicated radio resource control protocol (RRC) signaling.
  • RRC radio resource control protocol
  • the UE receives the uplink shared resource sent by the eNB Information, including:
  • the UE receives the uplink shared resource information sent by the eNB by using a system broadcast message.
  • the UE receives the uplink shared resource sent by the eNB Information, including:
  • the UE receives uplink shared resource information sent by the eNB by using an Msg4 message.
  • a second aspect of the embodiments of the present invention provides a data transmission method, including:
  • the evolved base station eNB allocates M uplink shared resources to at least one user equipment UE, where the M uplink uplink shared resources are uplink shared resources allocated by the eNB to allow the at least one UE to use without requesting authorization.
  • the M is an integer greater than or equal to 1;
  • the eNB sends uplink shared resource information to the at least one UE, where the uplink shared resource information includes location information of the M uplink shared resources.
  • the M serving uplink shared resources are in one-to-one correspondence with the M physical reserved indicator channels PRICH, where the PRICH is used to indicate the corresponding PRICH Whether a shared resource is idle;
  • the method further includes:
  • the eNB sends resource information of the M PRICHs to the at least one UE.
  • the method further includes:
  • the eNB sends a reserved resource response to the first UE according to whether the uplink shared resource that is requested by the first UE is in an idle state, where the reserved resource response is used to indicate that the first UE requests to reserve Whether the uplink shared resources are reserved successfully.
  • the reserved resource response is carried on the PRICH, and the PRICH is further used to indicate that the UE requests to reserve Whether the candidate uplink shared resource is reserved successfully.
  • the method further includes:
  • the eNB sends uplink shared resource update information to the at least one UE.
  • the eNB sends an uplink to the at least one UE Shared resource information, including:
  • the eNB performs scrambling on physical layer signaling by using a shared RNTI
  • the eNB sends the uplink shared resource information to the at least one UE by using physical layer signaling.
  • the method before the eNB scrambles the uplink shared resource information by using the shared RNTI, the method further includes:
  • the eNB sends the shared RNTI to the at least one UE.
  • the eNB sends an uplink to the at least one UE Shared resource information, including:
  • the uplink shared resource information that is sent by the eNB to the at least one UE by using dedicated radio resource control protocol RRC signaling.
  • the eNB sends an uplink to the at least one UE Shared resource information, including:
  • a third aspect of the embodiments of the present invention provides a data transmission apparatus, where the data transmission apparatus is a user equipment UE, including:
  • the receiving module is configured to receive the uplink shared resource information that is sent by the evolved base station eNB, where the uplink shared resource information includes location information of the M uplink shared resources, and the M shares of the uplink shared resource are allowed to be allocated by the eNB.
  • a parsing module configured to parse the uplink shared resource information, and obtain the location information
  • the sending module is configured to transmit uplink data on one of the uplink shared resources corresponding to the location information when the uplink data is transmitted.
  • the sending module is specifically configured to determine, from the M serving uplink shared resources, an uplink shared resource to be used in an idle state; The uplink data is transmitted on the uplink shared resource to be used.
  • the sending module is specifically configured to perform uplink from the M shares according to a channel condition between the UE and the eNB. Determining a candidate uplink shared resource in the shared resource; waiting for the candidate When the uplink shared resource is in an idle state, it is determined that the candidate uplink shared resource is an uplink shared resource to be used.
  • the uplink shared resource information further includes a modulation coding mode MCS corresponding to each of the M uplink shared resources;
  • the sending module is specifically configured to determine, according to a channel condition between the UE and the eNB, and an MCS of the M uplink shared resources, a candidate uplink shared resource from the M uplink shared resources.
  • the M uplink shared resources correspond to the M physical reservation indication channels PRICH.
  • the PRICH is used to indicate whether the uplink shared resource corresponding to the PRICH is in an idle state;
  • the sending module is specifically configured to determine, according to the PRICH corresponding to the candidate uplink shared resource, whether the uplink shared resource of the candidate is idle; and when the candidate uplink shared resource is in an idle state, determine the candidate uplink shared resource.
  • the upstream shared resource to be used.
  • the sending module is specifically configured to: when the candidate uplink shared resource is in an idle state, in the uplink sharing of the candidate Sending a resource request to the eNB, where the resource request is used to request the eNB to reserve the candidate uplink shared resource for the UE, and receive a reserved resource response sent by the eNB, where the The resource-reserving response is used to indicate whether the uplink shared resource that the UE requests to reserve is reserved; if the reserved resource response indicates that the candidate uplink shared resource reservation is successful, determining the candidate uplink The shared resource is the uplink shared resource to be used.
  • the reserved resource response is carried on the PRICH, and the PRICH is further used to indicate that the UE requests to reserve Whether the candidate uplink shared resource is reserved successfully.
  • the sending module is specifically configured to: if the UE is to be transmitted If the data size is greater than the maximum data size of the uplink shared resource to be used, the uplink data is transmitted on the uplink shared resource to be used.
  • the reserved resource request is included in the data.
  • the receiving module is further used by the sending module After the uplink data is transmitted on the uplink shared resource to be used, the uplink data feedback information sent by the eNB is received, where the uplink data feedback information is used to notify the UE whether the eNB successfully receives the uplink data;
  • the uplink data feedback information determines a packet error rate of the uplink data;
  • the sending module is further configured to: when the packet error rate is greater than a preset threshold, re-determine the uplink shared resource to be used to transmit the uplink data, or send a scheduling request SR to the eNB to request a dedicated transmission resource transmission.
  • the uplink data is further configured to: when the packet error rate is greater than a preset threshold, re-determine the uplink shared resource to be used to transmit the uplink data, or send a scheduling request SR to the eNB to request a dedicated transmission resource transmission.
  • the uplink data is further configured to: when the packet error rate is greater than a preset threshold, re-determine the uplink shared resource to be used to transmit the uplink data, or send a scheduling request SR to the eNB to request a dedicated transmission resource transmission.
  • the receiving module is further configured to receive the eNB
  • the uplink shared resource update information is used to update the location information of the uplink shared resource, and the uplink shared resource to be used is re-determined according to the uplink shared resource update information.
  • the receiving module is specifically configured to use a physical layer
  • the uplink shared resource information sent by the receiving eNB is used to scramble the physical layer signaling by using a shared RNTI;
  • the parsing module is configured to perform descrambling on the physical layer signaling by using the shared RNTI, acquire the uplink shared resource information, parse the uplink shared resource information, and obtain the location information.
  • the receiving module is further used by the parsing module to perform descrambling the uplink shared resource information by using the shared RNTI Previously, the shared RNTI sent by the eNB is received.
  • the receiving module is specifically configured to be dedicated
  • the RRC signaling of the RRC receives the uplink shared resource information sent by the eNB.
  • the receiving module is specifically configured to receive uplink shared resource information sent by the eNB by using a system broadcast message.
  • the receiving module is specifically configured to use the Msg4 message. Receiving uplink shared resource information sent by the eNB.
  • a fourth aspect of the embodiments of the present invention provides a data transmission apparatus, where the data transmission apparatus is an evolved base station eNB, including:
  • An allocating module configured to allocate, to the at least one user equipment UE, M uplink shared resources, where the M uplink uplink shared resources are allocated to the eNB, and the uplink shared resource that is allowed to be used by the at least one UE without requesting authorization
  • M is an integer greater than or equal to 1;
  • a sending module configured to send uplink shared resource information to the at least one UE, where the uplink shared resource information includes location information of the M uplink shared resources.
  • the M serving uplink shared resources are in one-to-one correspondence with the M physical reserved indicator channels PRICH, where the PRICH is used to indicate the corresponding PRICH Whether a shared resource is idle;
  • the sending module is further configured to: after sending the uplink shared resource information to the at least one UE, send the resource information of the M PRICHs to the at least one UE.
  • the device further includes:
  • a receiving module configured to receive a reserved resource request sent by a first UE in the at least one UE, where the reserved resource request is used to request the eNB to reserve the first UE request for the first UE Upstream shared resources;
  • the sending module is further configured to send, according to whether the uplink shared resource that is reserved by the first UE, is in an idle state, to send a reserved resource response to the first UE, where the reserved resource response is used to indicate the Whether the uplink shared resource requested by the UE is reserved is reserved.
  • the reserved resource response is carried on the PRICH, and the PRICH is further used to indicate that the UE requests to reserve Whether the candidate uplink shared resource is reserved successfully.
  • the sending module is further configured to send uplink shared resource update information to the at least one UE.
  • the sending module is specifically configured to adopt a shared RNTI pair.
  • the physical layer signaling performs scrambling; and the uplink shared resource information is sent to the at least one UE by using physical layer signaling.
  • the sending module is further configured to: before the uplink shared resource information is scrambled by using the shared RNTI, to the at least one UE Sending the shared RNTI.
  • the sending module is specifically configured to use dedicated wireless The uplink shared resource information sent by the resource control protocol RRC signaling to the at least one UE.
  • the sending module is specifically configured to use the Msg4 message to Uplink shared resource information sent by the at least one UE.
  • a fifth aspect of the embodiments of the present invention provides a data transmission apparatus, where the data transmission apparatus is a user equipment UE, including:
  • a receiver configured to receive uplink shared resource information sent by an evolved base station eNB, where the uplink shared resource information includes location information of M uplink shared resources, and the M uplink shared resources are allowed for the eNB An uplink shared resource that is used by the UE without requesting authorization, where the M is an integer greater than or equal to 1;
  • a parser configured to parse the uplink shared resource information, and obtain the location information
  • the transmitter is configured to transmit uplink data on one of the uplink shared resources corresponding to the location information when the uplink data is transmitted.
  • the transmitter is specifically configured to determine, from the M serving uplink shared resources, an uplink shared resource to be used in an idle state; The uplink data is transmitted on the uplink shared resource to be used.
  • the transmitter is specifically configured to: according to a channel situation between the UE and the eNB, Determining a candidate uplink shared resource in the M uplink shared resource; determining that the candidate uplink shared resource is the uplink shared resource to be used when the candidate uplink shared resource is in an idle state.
  • the uplink shared resource information further includes a modulation coding mode MCS corresponding to each of the M uplink shared resources;
  • the transmitter is specifically configured to determine, according to a channel condition between the UE and the eNB, and an MCS of the M uplink shared resources, a candidate uplink shared resource from the M uplink shared resources.
  • the M uplink shared resources correspond to the M physical reservation indication channels PRICH.
  • the PRICH is used to indicate whether the uplink shared resource corresponding to the PRICH is in an idle state;
  • the transmitter is specifically configured to determine, according to the PRICH corresponding to the candidate uplink shared resource, whether the candidate uplink shared resource is idle; and when the candidate uplink shared resource is in an idle state, determine the candidate uplink shared resource.
  • the upstream shared resource to be used.
  • the transmitter is specifically configured to: when the candidate uplink shared resource is in an idle state, in the uplink sharing of the candidate Sending a resource request to the eNB, where the resource request is used to request the eNB to reserve the candidate uplink shared resource for the UE, and receive a reserved resource response sent by the eNB, where the The resource-reserving response is used to indicate whether the uplink shared resource that the UE requests to reserve is reserved; if the reserved resource response indicates that the candidate uplink shared resource reservation is successful, determining the candidate uplink The shared resource is the uplink shared resource to be used.
  • the reserved resource response is carried on the PRICH, and the PRICH is further used to indicate that the UE requests to reserve Whether the candidate uplink shared resource is reserved successfully.
  • the transmitter is specifically configured to: if the UE is to be transmitted The data size is greater than the maximum number of uplink shared resources allowed to be transmitted. According to the size, the uplink data is transmitted on the uplink shared resource to be used, and the uplink data includes the reserved resource request.
  • the receiver is further used by the transmitter After the uplink data is transmitted on the uplink shared resource to be used, the uplink data feedback information sent by the eNB is received, where the uplink data feedback information is used to notify the UE whether the eNB successfully receives the uplink data;
  • the uplink data feedback information determines a packet error rate of the uplink data;
  • the transmitter is further configured to: when the packet error rate is greater than a preset threshold, re-determine the uplink shared resource to be used to transmit the uplink data, or send a scheduling request SR to the eNB to request a dedicated transmission resource transmission.
  • the uplink data is further configured to: when the packet error rate is greater than a preset threshold, re-determine the uplink shared resource to be used to transmit the uplink data, or send a scheduling request SR to the eNB to request a dedicated transmission resource transmission.
  • the uplink data is further configured to: when the packet error rate is greater than a preset threshold, re-determine the uplink shared resource to be used to transmit the uplink data, or send a scheduling request SR to the eNB to request a dedicated transmission resource transmission.
  • the receiver is further configured to receive the eNB
  • the uplink shared resource update information is used to update the location information of the uplink shared resource, and the uplink shared resource to be used is re-determined according to the uplink shared resource update information.
  • the receiver is specifically configured to use a physical layer
  • the uplink shared resource information sent by the receiving eNB is used to scramble the physical layer signaling by using a shared RNTI;
  • the parser is specifically configured to perform descrambling on the physical layer signaling by using the shared RNTI, acquire the uplink shared resource information, and parse the uplink shared resource information to obtain the location information.
  • the receiver is further used by the parser to perform descrambling the uplink shared resource information by using the shared RNTI Previously, the shared RNTI sent by the eNB is received.
  • the receiver is specifically configured to be dedicated
  • the RRC signaling of the RRC receives the uplink shared resource information sent by the eNB.
  • the receiver is specifically configured to broadcast through a system
  • the message receives uplink shared resource information sent by the eNB.
  • the receiver is specifically configured to pass the Msg4 message. Receiving uplink shared resource information sent by the eNB.
  • a sixth aspect of the embodiments of the present invention provides a data transmission apparatus, where the data transmission apparatus is an evolved base station eNB, including:
  • a processor configured to allocate, for the at least one user equipment UE, M uplink shared resources, where the M uplink uplink shared resources are allocated to the eNB, and the uplink shared resource that is allowed to be used by the at least one UE without requesting authorization
  • M is an integer greater than or equal to 1;
  • a transmitter configured to send uplink shared resource information to the at least one UE, where the uplink shared resource information includes location information of the M uplink shared resources.
  • the M serving uplink shared resources are in one-to-one correspondence with the M physical reserved indicator channels PRICH, where the PRICH is used to indicate the corresponding PRICH Whether a shared resource is idle;
  • the transmitter is further configured to send the resource information of the M PRICHs to the at least one UE after sending the uplink shared resource information to the at least one UE.
  • the device further includes:
  • a receiver configured to receive a reserved resource request sent by a first UE in the at least one UE, where the reserved resource request is used to request the eNB to reserve the first UE request for the first UE Upstream shared resources;
  • the transmitter is further configured to send a reserved resource response to the first UE according to whether the uplink shared resource that is requested by the first UE is in an idle state, where the reserved resource response is used to indicate the first Whether the uplink shared resource requested by the UE is reserved is reserved.
  • the reserved resource response is carried on the PRICH, and the PRICH is further used to indicate that the UE requests to reserve Whether the candidate uplink shared resource is reserved successfully.
  • the transmitter is further configured to At least one UE sends uplink shared resource update information.
  • the transmitter is specifically configured to adopt a shared RNTI pair.
  • the physical layer signaling performs scrambling; and the uplink shared resource information is sent to the at least one UE by using physical layer signaling.
  • the transmitter is further configured to: before the uplink shared resource information is scrambled by using a shared RNTI, to the at least one UE Sending the shared RNTI.
  • the transmitter is specifically configured to use dedicated wireless The uplink shared resource information sent by the resource control protocol RRC signaling to the at least one UE.
  • the transmitter is specifically configured to use the Msg4 message to Uplink shared resource information sent by the at least one UE.
  • the data transmission method and device provided by the embodiment of the present invention receive the uplink shared resource information sent by the eNB by using the UE.
  • the uplink shared information includes the location information of the M uplink shared resources, and the M uplink shared resources are allocated to the eNB.
  • the uplink shared resource that can be used under the authorization condition is not required to be used. Therefore, the UE can obtain the location information by parsing the uplink shared resource information.
  • the UE transmits the uplink data
  • the UE can transmit the uplink on one of the uplink shared resources corresponding to the location information.
  • the data is not restricted by the PDCCH capacity limitation, and therefore, the utilization of the PUSCH is improved.
  • Embodiment 1 is a schematic flowchart of Embodiment 1 of a data transmission method according to the present invention
  • Embodiment 2 is a schematic flowchart of Embodiment 2 of a data transmission method according to the present invention
  • Embodiment 3 is a schematic flowchart of Embodiment 3 of a data transmission method according to the present invention.
  • Embodiment 4 is a schematic flowchart of Embodiment 4 of a data transmission method according to the present invention.
  • FIG. 5 is a schematic structural diagram of Embodiment 1 of a data transmission apparatus according to the present invention.
  • Embodiment 2 of a data transmission apparatus according to the present invention
  • FIG. 7 is a schematic structural diagram of Embodiment 3 of a data transmission apparatus according to the present invention.
  • FIG. 8 is a schematic structural diagram of Embodiment 4 of a data transmission apparatus according to the present invention.
  • the eNB of the present invention allocates a part of uplink shared resources to the UEs in the preset range in advance, and the part of the uplink shared resources may adopt the “PDCCH less” side.
  • the UE in the preset range can use the uplink shared resource that is allocated in advance by the eNB without requesting authorization, and the uplink shared resource can be used without requesting authorization, so
  • the PDCCH waits for the restriction of the authorization, and saves the resources of the PDCCH, thereby improving the utilization of the PUSCH.
  • FIG. 1 is a schematic flowchart of a first embodiment of a data transmission method according to the present invention.
  • the execution entity of this embodiment is a UE.
  • the method in this embodiment includes:
  • the UE receives uplink shared resource information sent by the eNB.
  • the eNB allocates M servings of the uplink shared resource to the at least one UE, where the M shares of the uplink shared resource are allocated to the eNB, and the uplink shared resource that is allowed to be used by the at least one UE without requesting authorization, where M is an integer greater than or equal to 1.
  • the at least one UE is a UE in a preset range.
  • the eNB Before allocating M servings of the uplink shared resource for the at least one UE, the eNB determines, according to the preset information, the UE in the preset range according to the information of the service type and the information fed back by the UE, and then The UEs in the preset range allocate M servings of uplink shared resources, so that the UEs within the preset range can use the M uplink shared resources without requesting authorization.
  • the uplink shared resource information is sent to the at least one UE, where the uplink shared resource information includes the location information of the M uplink shared resources, so that the UE determines which uplink shared resources are used according to the location information. Can be used without requesting authorization.
  • the above location information includes information such as time-frequency resources.
  • the UE receives the foregoing uplink shared resource information sent by the eNB.
  • the UE parses the uplink shared resource information to obtain the location information.
  • the UE After receiving the uplink shared information, the UE parses the uplink shared information to obtain location information of the M uplink shared resources.
  • the uplink data is transmitted on one of the uplink shared resources corresponding to the location information.
  • the UE When the UE has uplink data to be transmitted, it may be transmitted on one of the uplink shared resources corresponding to the location information of the M uplink shared resources that are obtained, and the process of requesting authorization is not required.
  • the UE receives the uplink shared resource information sent by the eNB, and the uplink shared information includes the location information of the M uplink shared resources, and the M uplink shared resources are allocated to the eNB, and the UE can be used without requesting the authorization.
  • the uplink shared resource the UE can obtain the location information by parsing the uplink shared resource information, and when the UE transmits the uplink data, the uplink data can be transmitted on one of the uplink shared resources corresponding to the location information, and is not affected by the PDCCH capacity.
  • the limitation of the limit therefore, improves the utilization of the PUSCH.
  • FIG. 2 is a schematic flowchart of a second embodiment of a data transmission method according to the present invention.
  • the executor of the embodiment is an eNB. As shown in FIG. 2, the method in this embodiment includes:
  • the eNB allocates M uplink shared resources to at least one UE.
  • the M shared uplink resource is an uplink shared resource that is allocated to the eNB and allowed to be used by at least one UE without requesting authorization, where the M is an integer greater than or equal to 1;
  • the eNB sends uplink shared resource information to the at least one UE.
  • the uplink shared resource information includes location information of the foregoing M uplink shared resources.
  • the above location information includes information such as time-frequency resources.
  • the eNB allocates M uplink shared resources to the at least one UE, and the eNB sends the uplink shared resource information to the at least one UE, where the M uplink allocated resources are allocated to the eNB, and at least one UE is allowed to request authorization.
  • the uplink shared resource is used. Therefore, when the UE transmits the uplink data, the uplink data may be transmitted on one of the uplink shared resources of the M uplink shared resources, which is not restricted by the PDCCH capacity limitation, thereby improving the PUSCH. Utilization rate.
  • the manner in which the eNB sends the uplink shared resource information to the at least one UE includes but is not limited to the following four modes:
  • the first implementation manner is: the eNB sends the uplink shared resource information to the at least one UE by using the physical layer signaling, and the eNB uses the shared network temporary identifier (Radio Network Temporary Identifier, hereinafter referred to as: RNTI) to the physical layer.
  • the scrambling is performed, for example, scrambling is performed using PDCCH Less RNTI (hereinafter referred to as PL-RNTI).
  • PL-RNTI PDCCH Less RNTI
  • the eNB sends the shared RNTI to the at least one UE, that is, the at least one UE has the same total Achievement RNTI.
  • the above shared RNTI is different from the existing shared RNTI.
  • the above physical layer signaling may be a DCI message.
  • the UE receives the uplink shared resource information sent by the eNB through the physical layer signaling, and the physical layer signaling is scrambled by using the shared RNTI.
  • the UE uses the shared RNTI to descramble the received physical layer signaling to obtain the uplink shared resource.
  • the UE receives the shared RNTI sent by the eNB.
  • the eNB may send the foregoing RNTI to the UE by using dedicated signaling, and only the UE having the same shared RNTI as that used by the eNB to scramble may successfully descramble.
  • the UE that successfully descrambles can use the M uplink shared resources included in the uplink shared resource information without requesting authorization.
  • the second implementation manner is: the eNB sends uplink shared resource information to the at least one UE by using dedicated radio resource control protocol (RRC) signaling.
  • RRC radio resource control protocol
  • the UE receives the uplink shared resource information sent by the eNB through dedicated RRC signaling.
  • the third implementation manner is: the eNB sends the uplink shared resource information to the at least one UE by using the system broadcast message.
  • the UE receives the uplink shared resource information sent by the eNB by using a system broadcast message.
  • the fourth implementation manner is: the eNB sends the uplink shared resource information to the at least one UE by using the Msg4 message.
  • the UE receives the uplink shared resource information sent by the eNB by using an Msg4 message.
  • the UE in the preset range includes at least two UEs
  • the UE transmits the uplink data the UE may use the M shares allocated by the eNB in the following manners.
  • Upstream shared resources specifically, but not limited to the following ways:
  • FIG. 3 is a schematic flowchart of Embodiment 3 of the data transmission method according to the present invention:
  • the UE determines, from the M uplink shared resources, an uplink shared resource to be used in an idle state.
  • the UE determines a candidate uplink shared resource from the M uplink shared resources according to the channel condition between the UE and the eNB; or randomly determines a candidate uplink shared resource from the M uplink shared resources; When the candidate uplink shared resource is in an idle state, the candidate uplink shared resource is determined to be an uplink shared resource to be used.
  • each uplink shared resource corresponds to a Modulation and Coding Scheme (MCS). Therefore, the uplink shared resource information may also be used. Including: MCS and other transmission-related information, the MCs of the M shared resources may be the same, or may be set different according to the location of the UE, and the present invention is not limited thereto.
  • MCS Modulation and Coding Scheme
  • Determining a candidate uplink shared resource from the M uplink shared resources may be specifically determining, according to the MCs of the M uplink shared resources, an uplink shared resource suitable for the UE as a candidate uplink share from the M uplink shared resources.
  • Resources. Specifically, the basis for the UE to select the M uplink shared resources may be the modulation coding mode of the UE according to the channel condition between the UE and the eNB and the M shares. When the channel condition of the UE is good, the measurement result is higher than the first pre-preparation. When the threshold is set, the shared resource with a higher modulation and coding mode can be selected.
  • the shared resource with a lower modulation and coding mode can be selected.
  • the channel condition may be a result of the pilot signal measured by the UE, and the first preset threshold and the second preset threshold are configured to the UE by using high layer signaling.
  • the candidate uplink shared resource After the candidate uplink shared resource is determined, it is further determined whether the candidate uplink shared resource is in an idle state, specifically, the M uplink shared resource and the M physical reservation indication channel (hereinafter referred to as: PRICH) is one-to-one correspondence, and PRICH is used to indicate whether the uplink shared resource corresponding to PRICH is in an idle state.
  • the eNB After transmitting the uplink sharing information to the at least one UE, the eNB further sends M PRICHs to the at least one UE, so that the UE determines, according to the PRICH, whether the uplink shared resource of the corresponding response is in an idle state, for example, when PRICH is 1, it indicates that the PRICH corresponds to The uplink shared channel is in an occupied state.
  • the UE may determine whether the candidate uplink shared resource is idle according to the PRICH corresponding to the candidate uplink shared channel, and determine that the candidate uplink shared resource is the uplink shared resource to be used when the candidate uplink shared resource is in the idle state, when the candidate is the candidate.
  • the candidate uplink shared resource is determined to be the uplink shared resource to be used when the candidate uplink shared resource is idle; and when the candidate uplink shared resource is in the occupied state, It is also possible to reselect the suboptimal uplink shared resource as the candidate uplink shared resource.
  • the invention is not limited.
  • the UE may also determine the candidate uplink shared channel according to the idle state in the M uplink shared resources. How to determine the idle state of the M uplink shared resources is the same as the description in the previous paragraph, and details are not described herein.
  • the candidate uplink shared resource determined by the idle state of the shared resource may be multiple, and then a shared resource suitable for the UE to perform uplink data transmission is determined according to a channel condition of multiple candidate uplink shared resources (specifically, a modulation and coding mode). As an upstream shared resource to be used.
  • the foregoing method determines the uplink shared resource to be used, which is not limited by the present invention.
  • the present invention also provides a definition rule of PRICH, each uplink shared resource corresponds to one PRICH; multiple PRICHs form one PRICH group, and PRICH in the same PRICH group is distinguished by orthogonal codes; each PRICH passes the following: Two ways to uniquely identify, 1, the group number and the orthogonal code number; 2, according to the PHICH group number, orthogonal code and an offset. 3.
  • the PRICH resource notifies the UE through RRC dedicated signaling or broadcast form.
  • S302 The UE transmits uplink data on the uplink shared resource to be used.
  • the uplink data may be transmitted on the shared resource to be used.
  • FIG. 4 is a schematic flowchart of a fourth embodiment of the data transmission method according to the present invention, including the following steps:
  • S401 The UE determines, according to the channel condition of the M uplink shared resources, a candidate uplink shared resource from the M uplink shared resources.
  • the reserved resource request is used to request the eNB to reserve the candidate uplink shared resource for the UE.
  • the implementation is different from the first implementation manner in that the UE sends a reserved resource request to the eNB on the candidate uplink shared resource, and the resource reservation request is sent for convenience of description.
  • the UE is the “first UE”, and requests the eNB to reserve the uplink shared resource (candidate uplink shared resource) that the first UE requests to reserve for the first UE.
  • the eNB After receiving the resource reservation request sent by the first UE in the at least one UE, the eNB determines whether the uplink shared resource that is reserved by the first UE is in an idle state, and determines whether to reserve the candidate uplink shared resource for the UE, and The first UE sends a reserved resource response, and notifies the UE of the reservation result by using the reserved resource response.
  • the reserved resource response is used to indicate whether the uplink shared resource requested by the first UE is reserved. If the reservation is reserved, the reserved resource response carries an indication that the identifier is successfully reserved. If not, the resource response is reserved. There is an indication that the reservation has failed.
  • S403 The UE receives a reserved resource response sent by the eNB.
  • the reserved resource response is used to indicate whether the candidate uplink resource that the UE requests to reserve is reserved.
  • the foregoing reserved resource response is carried on the PRICH, and the PRICH is further used to indicate whether the reserved uplink shared resource that the UE requests to reserve is reserved.
  • the eNB reserves the candidate uplink shared resources for the UE, the other UEs are not allowed to perform data transmission on the candidate uplink shared resources.
  • the UE may re-request after a period of time, or select another uplink shared resource as the candidate uplink shared resource, and the present invention does not limit the present invention.
  • S405 The UE transmits uplink data on an uplink shared resource to be used.
  • the UE Since the UE requests the eNB to reserve the uplink shared resource to be used before using the uplink shared resource to transmit the uplink data, the phenomenon that two or more UEs simultaneously use the same uplink shared resource to collide can be avoided.
  • the resource reservation request may be carried in the media access control protocol data unit MAC PDU header; or, carried in the medium access control unit MAC CE; or carried in the Msg3 message of the RACH procedure.
  • the resource reservation request is carried in the MAC PDU header.
  • the format of the data packet is as follows:
  • RR indicates a resource reservation request
  • R indicates reserved
  • E indicates Extension, that is, whether the MAC header contains other domains
  • LCID indicates a Logical Channel ID, that is, a logical channel ID
  • F "Represents the format, that is, the size of the length field
  • L represents the length, that is, the length of the corresponding MAC SDU or variable-length MAC CE.
  • the uplink data to be transmitted is transmitted in multiple blocks.
  • the UE transmits uplink data on the uplink shared resource to be used
  • the UE includes a reserved resource request in the uplink data packet. For example, the UE receives the resource reservation response sent by the eNB, indicating that the candidate uplink shared resource reservation is successful, and the maximum uplink data packet allowed by the candidate uplink shared resource is 5M, and the data size of the UE to be transmitted is 13M. Then, the resource reservation request is carried in the data packet that is transmitted for the first time.
  • the resource reservation response indicates that the resource reservation is successful
  • the data of the second time is continued to be transmitted on the same uplink shared resource, and the data transmitted by the UE for the first time is assumed.
  • the block size is 5M
  • the data size to be transmitted is 8M
  • the resource reservation request is carried in the data packet transmitted in the second time.
  • the resource reservation response indicates that the resource reservation is successful
  • the data transmission on the same uplink shared resource continues.
  • the third data assuming that the data block size of the second transmission is 5M, the data size to be transmitted is 3M, which is smaller than the maximum transmission data packet allowed by the candidate uplink shared resource, and continues on the same uplink shared resource.
  • the third time data is transmitted, but there is no need to carry a resource reservation request.
  • the state of the corresponding uplink shared resource is changed to idle. Specifically, the value of the PRICH corresponding to the uplink shared resource is set to idle.
  • the UE does not send a resource reservation request to the eNB before transmitting the first uplink data to the eNB, but directly on the first uplink data packet and the subsequent uplink data packet.
  • the resource reservation request is carried according to the actual situation, and specifically, whether the resource reservation request is carried according to the relationship between the uplink data size to be transmitted by the UE and the maximum data size that the uplink shared resource to be used for transmission is allowed to be transmitted.
  • the UE sends a resource reservation request to the eNB before transmitting the first uplink data packet to the eNB, and is in the An uplink data packet and subsequent uplink data packets carry resource reservation requests according to actual conditions.
  • the UE may also carry the size of the data packet to be sent by the UE in the resource reservation request that is sent for the first time. It is assumed that the size of the data packet to be transmitted by the UE is 13 M, and the resource reserved by the UE for the first time.
  • the request carries the size of the data packet to be sent, and the size of the data packet to be sent is 13 M, so that the eNB continuously reserves the uplink shared resource for the UE according to the size of the data packet to be sent carried in the resource reservation request.
  • the eNB passes the Physical Hybrid Automatic Repeat Request Indicator Channel (PHICH) according to the situation of parsing the data packet.
  • PHICH Physical Hybrid Automatic Repeat Request Indicator Channel
  • the uplink data feedback information is used to notify the UE whether the eNB successfully receives the uplink data.
  • the UE determines the packet error rate of the uplink data according to the uplink data feedback information.
  • the UE When the packet error rate is greater than the preset threshold, the UE re-determines the uplink shared resource to be used to transmit the uplink data, or The UE sends an SR to the eNB to request the dedicated transmission resource to transmit the uplink data.
  • the manner in which the UE re-determines the uplink shared resource to be used may be a change of a shared resource transmission, or a resource request is sent using a RACH procedure.
  • the eNB when the eNB re-divides the uplink shared resource or reclaims the already-divided uplink shared resource, the eNB sends the uplink shared resource update information to the UE, where the uplink shared resource update information is used to update the location information of the uplink shared resource, where the UE
  • the method for re-determining the uplink shared resource to be used according to the uplink shared resource update information For details, refer to the detailed description of the foregoing embodiments, and details are not described herein again.
  • FIG. 5 is a schematic structural diagram of Embodiment 1 of a data transmission apparatus according to the present invention.
  • the data transmission apparatus is a user equipment UE.
  • the apparatus in this embodiment includes a receiving module 501, a parsing module 502, and a sending module 503, where the receiving module 501 is configured to receive The uplink shared resource information sent by the evolved base station eNB, where the uplink shared resource information includes location information of M uplink shared resources, and the M uplink shared resources are allocated to the eNB, and the UE is allowed to use without requesting authorization.
  • the uplink shared resource wherein the M is an integer greater than or equal to 1; the parsing module 502 is configured to parse the uplink shared resource information, and obtain the location information; and when the sending module 503 is configured to transmit uplink data, where the location information is corresponding One up The uplink data is transmitted on the shared resource.
  • the sending module 503 is specifically configured to determine, from the M uplink shared resources, an uplink shared resource to be used in an idle state, and transmit uplink data on the uplink shared resource to be used.
  • the sending module 503 is specifically configured to determine, according to the channel condition between the UE and the eNB, a candidate uplink shared resource from the M uplink shared resources; the uplink shared resource of the candidate is in the In the idle state, it is determined that the candidate uplink shared resource is the uplink shared resource to be used.
  • the uplink shared resource information further includes a modulation and coding mode MCS corresponding to each of the M uplink resources
  • the sending module 503 is specifically configured to: according to the channel condition between the UE and the eNB, and the M uplink The MCS of the shared resource determines a candidate uplink shared resource from the M uplink shared resources.
  • the M uplink co-shared resources are in one-to-one correspondence with the M physical reservation indication channels PRICH, and the PRICH is used to indicate whether the uplink shared resource corresponding to the PRICH is in an idle state;
  • the sending module 503 is specifically configured to determine, according to the PRICH corresponding to the candidate uplink shared resource, whether the uplink shared resource of the candidate is idle. When the candidate uplink shared resource is in an idle state, determine that the candidate uplink shared resource is to be used. Upstream shared resources.
  • the sending module 503 is specifically configured to: when the candidate uplink shared resource is in an idle state, send a reserved resource request to the eNB on the candidate uplink shared resource, where the reserved resource request is used to request the foregoing
  • the eNB reserves the candidate uplink shared resource for the UE; and receives the reserved resource response sent by the eNB, where the reserved resource response indicates whether the candidate uplink shared resource that the UE requests to reserve is reserved; If the reserved resource resource indicates that the candidate uplink resource reservation is successful, the candidate uplink resource is determined to be the uplink shared resource to be used.
  • the reserved resource response is carried on the PRICH, and the PRICH is further used to indicate whether the candidate uplink shared resource that the UE requests to reserve is reserved.
  • the sending module 503 is specifically configured to be used if the UE is to be transmitted.
  • the uplink data is transmitted on the uplink shared resource to be used, and the foregoing uplink data includes the reserved resource request, where the row data size is greater than the maximum data size that is allowed to be transmitted by the uplink shared resource to be used.
  • the receiving module 501 is further configured to: after the transmitting module transmits uplink data on the uplink shared resource to be used, receive the uplink data feedback information sent by the eNB, where the uplink data feedback information is used to notify the UE of the foregoing. Whether the eNB successfully receives the uplink data; and determines, according to the uplink data feedback information, a packet error rate of the uplink data;
  • the sending module 503 is further configured to: when the error rate is greater than the preset threshold, re-determine the uplink shared resource to be used to transmit the uplink data, or send a scheduling request SR to the eNB to request the dedicated transmission resource to transmit the uplink data. .
  • the receiving module 501 is further configured to receive uplink shared resource update information that is sent by the eNB, where the uplink shared resource update information is used to update location information of the uplink shared resource, and re-determine according to the uplink shared resource update information. Upstream shared resources to be used.
  • the receiving module 501 is specifically configured to receive uplink shared resource information sent by the eNB by using physical layer signaling, and perform scrambling on the physical layer signaling by using a shared RNTI.
  • the parsing module 502 is configured to perform descrambling on the physical layer signaling by using the shared RNTI to acquire the uplink shared resource information, and parse the uplink shared resource information to obtain the location information.
  • the receiving module 501 is further configured to: before the parsing module descrambles the uplink shared resource information by using the shared RNTI, receiving the shared RNTI sent by the eNB.
  • the receiving module 501 is specifically configured to receive the uplink shared resource information sent by the eNB by using a dedicated radio resource control protocol (RRC) signaling.
  • RRC radio resource control protocol
  • the receiving module 501 is specifically configured to receive uplink shared resource information sent by the eNB by using a system broadcast message.
  • the receiving module 501 is specifically configured to receive uplink shared resource information sent by the eNB by using an Msg4 message.
  • the device of the foregoing embodiment is correspondingly used to implement the technical solution of the method embodiment shown in FIG. 1 , and the implementation principle and technical effects thereof are similar, and details are not described herein again.
  • FIG. 6 is a schematic structural diagram of Embodiment 2 of a data transmission apparatus according to the present invention.
  • the data transmission apparatus is an evolved base station eNB, and the apparatus in this embodiment includes an allocation module 601 and a sending module 602, where the allocation module 601 is configured to be at least one user.
  • the device UE allocates M uplink shared resources, where the M uplink shared resources are uplink shared resources allocated by the eNB to allow the at least one UE to use without requesting authorization, where the M is an integer greater than or equal to 1;
  • the sending module 602 is configured to send uplink shared resource information to the at least one UE, where the uplink shared resource information includes location information of the M uplink shared resources.
  • the M uplink co-shared resources are in one-to-one correspondence with the M physical reservation indication channels PRICH, and the PRICH is used to indicate whether a shared resource corresponding to the PRICH is in an idle state; the sending module 602 is further used to After transmitting the uplink shared resource information to the at least one UE, the resource information of the M PRICHs is sent to the at least one UE.
  • the method further includes a receiving module, where the receiving module is configured to receive a reserved resource request sent by the first UE in the at least one UE, where the reserved resource request is used to request the eNB to reserve the foregoing for the first UE.
  • the first UE requests the reserved uplink shared resource;
  • the sending module 602 is further configured to send, according to the uplink shared resource that the first UE requests the reservation, whether the uplink shared resource is in an idle state, and send a reserved resource response to the first UE, where the reserved resource is used.
  • the response is used to indicate whether the uplink shared resource requested by the first UE requests to be reserved is successfully reserved.
  • the reserved resource response is carried on the PRICH, and the PRICH is further used to indicate whether the candidate uplink shared resource that the UE requests to reserve is reserved.
  • the sending module 602 is further configured to send uplink shared resource update information to the at least one UE.
  • the sending module 602 is specifically configured to perform scrambling on the physical layer signaling by using the shared RNTI, and send the uplink shared resource information to the at least one UE by using physical layer signaling.
  • the sending module 602 is further configured to send the shared RNTI to the at least one UE before the uplink shared resource information is scrambled by using the shared RNTI.
  • the sending module 602 is specifically configured to send uplink shared resource information to the at least one UE by using dedicated radio resource control protocol (RRC) signaling.
  • RRC radio resource control protocol
  • the sending module 602 is specifically configured to send uplink shared resource information to the at least one UE by using an Msg4 message.
  • the device of the foregoing embodiment is correspondingly used to implement the technical solution of the method embodiment shown in FIG. 2, and the implementation principle and the technical effect are similar, and details are not described herein again.
  • FIG. 7 is a schematic structural diagram of a third embodiment of a data transmission apparatus according to the present invention.
  • the data transmission apparatus is a user equipment UE, and the apparatus in this embodiment includes a receiver 701, a parser 702, and a transmitter 703.
  • the receiver 701 is configured to receive uplink shared resource information that is sent by the evolved base station eNB, where the uplink shared resource information includes location information of the M uplink shared resources, where the M uplink shared resources are allocated to the eNB to allow the UE to be in the The uplink shared resource used in the authorization condition is not required, wherein the M is an integer greater than or equal to 1; the parser 702 is configured to parse the uplink shared resource information to obtain the location information; and when the transmitter 703 is configured to transmit uplink data, The uplink data is transmitted on one of the uplink shared resources corresponding to the location information.
  • the transmitter 703 is specifically configured to determine, from the M uplink shared resources, an uplink shared resource to be used in an idle state, and transmit uplink data on the uplink shared resource to be used.
  • the transmitter 703 is specifically configured to determine, according to the channel condition between the UE and the eNB, a candidate uplink shared resource from the M uplink shared resources; the uplink shared resource of the candidate is in the In the idle state, it is determined that the candidate uplink shared resource is the uplink shared resource to be used.
  • the uplink shared resource information further includes a modulation and coding mode MCS corresponding to each of the M uplink shared resources, where the transmitter 703 is specifically configured to use the channel condition between the UE and the eNB, and the M uplink.
  • the MCS of the shared resource determines a candidate uplink shared resource from the M uplink shared resources.
  • the M uplink co-shared resources are in one-to-one correspondence with the M physical reservation indication channels PRICH, and the PRICH is used to indicate whether the uplink shared resource corresponding to the PRICH is in an idle state; the transmitter 703 is specifically configured to be used according to The PRICH corresponding to the candidate uplink shared resource determines whether the candidate uplink shared resource is idle. When the candidate uplink shared resource is in an idle state, the candidate uplink shared resource is determined to be an uplink shared resource to be used.
  • the transmitter 703 is specifically configured to: when the candidate uplink shared resource is in an idle state, send a reserved resource request to the eNB on the candidate uplink shared resource, where the reserved resource request is used to request the foregoing
  • the eNB reserves the candidate uplink shared resource for the UE; and receives the reserved resource response sent by the eNB, where the reserved resource response indicates whether the candidate uplink shared resource that the UE requests to reserve is reserved; If the reserved resource resource indicates that the candidate uplink resource reservation is successful, the candidate uplink resource is determined to be the uplink shared resource to be used.
  • the reserved resource response is carried on the PRICH, and the PRICH is further used to indicate whether the candidate uplink shared resource that the UE requests to reserve is reserved.
  • the transmitter 703 is specifically configured to: if the uplink data size to be transmitted by the UE is greater than the maximum data size that is allowed to be transmitted by the uplink shared resource to be used, transmit the uplink data on the uplink shared resource to be used.
  • the foregoing uplink data includes the foregoing reserved resource request.
  • the receiver 701 is further configured to: after the transmitter transmits the uplink data on the uplink shared resource to be used, receive the uplink data feedback information sent by the eNB, where the uplink data feedback information is used to notify the UE of the foregoing. Whether the eNB successfully receives the uplink data, and determines a packet error rate of the uplink data according to the uplink data feedback information.
  • the transmitter 703 is further configured to: when the packet error rate is greater than a preset threshold, re-determine the uplink shared resource to be used. Uplink data, or sending a scheduling request SR to the eNB to request the dedicated transmission resource to transmit the uplink data.
  • the receiver 701 is further configured to receive uplink shared resource update information that is sent by the eNB, where the uplink shared resource update information is used to update location information of the uplink shared resource, and is determined according to the uplink shared resource update information. Upstream shared resources to be used.
  • the receiver 701 is specifically configured to receive uplink shared resource information sent by the eNB by using physical layer signaling, and use the shared RNTI to scramble the physical layer signaling.
  • the parser is specifically configured to perform descrambling on the physical layer signaling by using the shared RNTI to acquire the uplink shared resource information, and parse the uplink shared resource information to obtain the location information.
  • the receiver 701 is further configured to receive, by the parser, the shared RNTI sent by the eNB before descrambling the uplink shared resource information by using the shared RNTI.
  • the receiver 701 is specifically configured to receive the uplink shared resource information sent by the eNB by using a dedicated radio resource control protocol (RRC) signaling.
  • RRC radio resource control protocol
  • the receiver 701 is specifically configured to receive the uplink shared resource information sent by the eNB by using a system broadcast message.
  • the receiver 701 is specifically configured to receive uplink shared resource information sent by the eNB by using an Msg4 message.
  • the device of the foregoing embodiment is correspondingly used to implement the technical solution of the method embodiment shown in FIG. 1 , and the implementation principle and technical effects thereof are similar, and details are not described herein again.
  • FIG. 8 is a schematic structural diagram of Embodiment 4 of a data transmission apparatus according to the present invention.
  • the data transmission apparatus is an evolved base station eNB.
  • the apparatus in this embodiment includes a processor 801 and a transmitter 802.
  • the M shared uplink resource is allocated to the at least one user equipment UE, where the M uplink shared resource is an uplink shared resource that is allocated by the foregoing eNB to allow the at least one UE to use without requesting authorization, where the foregoing M is
  • the transmitter 802 is configured to send the uplink shared resource information to the at least one UE, where the uplink shared resource information includes the location information of the M uplink shared resources.
  • the M uplink shared resources are in one-to-one correspondence with the M physical reservation indication channels PRICH, and the PRICH is used to indicate whether a shared resource corresponding to the PRICH is in an idle state; the transmitter 802 is further used to After transmitting the uplink shared resource information to the at least one UE, the resource information of the M PRICHs is sent to the at least one UE.
  • the receiver further includes: a receiver, configured to receive a reserved resource request sent by the first UE in the at least one UE, where the reserved resource request is used to request the eNB to reserve the first UE request for the first UE.
  • the reserved uplink shared resource is further configured to: send, by the first UE, whether the uplink shared resource that is reserved by the first UE is in an idle state, and send a reserved resource response to the first UE, where the reserved resource response is used to indicate Whether the uplink shared resource requested by the first UE is reserved is reserved.
  • the reserved resource response is carried on the PRICH, and the PRICH is further used to indicate whether the candidate uplink shared resource that the UE requests to reserve is reserved.
  • the transmitter 802 is further configured to send uplink shared resource update information to the at least one UE.
  • the transmitter 802 is specifically configured to perform physical layer signaling by using a shared RNTI, and send the uplink shared resource information to the at least one UE by using physical layer signaling.
  • the transmitter 802 is further configured to send the shared RNTI to the at least one UE before the uplink shared resource information is scrambled by using the shared RNTI.
  • the transmitter 802 is specifically configured to send uplink shared resource information to the at least one UE by using dedicated radio resource control protocol (RRC) signaling.
  • RRC radio resource control protocol
  • the transmitter 802 is specifically configured to send uplink shared resource information to the at least one UE by using an Msg4 message.
  • the device of the foregoing embodiment is correspondingly used to implement the technical solution of the method embodiment shown in FIG. 2, and the implementation principle and the technical effect are similar, and details are not described herein again.
  • the disclosed apparatus and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the above units is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or may be Integrate into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described above as separate components may or may not be physically separated.
  • the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium.
  • the above software functional unit is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to perform the methods of the various embodiments of the present invention. Part of the steps.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .

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JP2017510319A JP6460428B2 (ja) 2014-08-19 2014-08-19 データ伝送方法及び装置
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EP14900256.0A EP3171652B1 (de) 2014-08-19 2014-08-19 Datenübertragungsverfahren und -vorrichtung
PCT/CN2014/084729 WO2016026087A1 (zh) 2014-08-19 2014-08-19 数据传输方法和装置
US15/435,536 US10194353B2 (en) 2014-08-19 2017-02-17 Data transmission method and apparatus

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US20170164242A1 (en) 2017-06-08
EP3171652A1 (de) 2017-05-24
JP6460428B2 (ja) 2019-01-30
CN105637962B (zh) 2019-06-28
US10194353B2 (en) 2019-01-29
EP3171652A4 (de) 2017-08-23
JP2017528982A (ja) 2017-09-28
EP3171652B1 (de) 2019-08-14

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